Pole-top cap.



PATENTED JULY 7, 1908.

I J. W. FRASER, POLE TOP GAP.

'APPLIGATION FILED NUT-11,1907- I wvemfoz JAME a W FRASER flHom lm a shape shown in vented a new and specification. 1 My mventlorr 1s anrmprovement in pole- UNITED ST ES PATENT *o Fro JAMES WILLIAMFRASER, or CHARLOTTE; NORTH CAROLINA.

' ROLE-TOP CAP.

To a ll whom it may concemr Beit known that-I, J AMES WI'LLI'AM FRA- suit, a subject of the King of Englandjre'siding 'atjGh'arlotte, in the county of Mecklenburg and state of 'North'Carolina, have ini useful Improvement; in which the following is a Pole-Top Ca topcaps, and consists ,in certain novel constructlons and combinations of parts herelnafter described and'claimed.

- Referring to the drawings forming. a part" hereof,'Figure Us a side view of a pole provided with the improved cap and Fig. 2 is a plan view of the cap partly in section.

ln the present embodiment of the invention,the.pole A has its top" squared, and the ca B rests thereon, the pole being extended as ort, distance above the highest cross arm' a-in the-usual manner. The'.cap com rises a sides of the pole, and the saidextended sides j are provided'with openingsfor receiving lag screws 12 for securing the cap tothe pole. v

The upper face of the plate at the large end, is provided with anopening b, into which is threaded theinsulator pin-b bearing on its end the usual insulator b which is provided on its topwith the grooveb", for re-' ceiving the wire 0.

groove.I) on its outer face in which is re- The small end of the plate is "provided with a head I), having a. vertical depression or ceiv'ed an arm, in the present instance a pipe D, thepipe being secured to the head by a U-b'olt b, whose threaded arms traverse penings in the head, and are secured in p ace by nuts I). The pipe D extends vertically upward from the" head, as at d, and theupper end is flattened as at d.

tion of the 5 extends above the wire E as atd, and that the portion (1 of the pipe below Specification of Letters Patent, Application filed November 11, 1907. Serial $10,401,581.

A wire E for lightningprotection is supported at the junction offltheflattened portionwi-th the main portionlof the pipe. This wire is" retained in position I by a U-bolt (P, the threaded arms of which traverse openings in the flattened portion Patented Q'l'uly 7, 1908.

the head, is bent at an angle to the portion' above the hea'd,an d engages the ole as at d, the engaging portion being also attene'd and provided with "an opening, through which passes a bolt (1 the boltalso passing through the pole, and being secured bya. nut (1 v A ground wire G is arranged longitudinally of the pole in the usual manner, the lower end being grounded, and the upper end is formed into a loop and inserted between the head of the bolt-and theflattened ortion of the pipe, before the nut is tightened? After the bolt is tightened the ground. wire is pressed into firm contact with the pipe. 7 l

A horn 'arre'ster F, as shown in Fig. 1, is connectedwith the top of the insulator as at f. The distance from the horn arrester to.

thepipe is somewhat less than the sparking distance from the line wire to the insulator pin, and. is designed, to carryabnormal injury to said wire by the dischargefrom the horn arrester. A resistancemay be inserted in'seriesjin the round Wire if desired; l

' It willvbe un erstood that the art Dis of conducting material, and while have described it as a pipe. it is obvious that it mi ht be of any-other suitable form or shape. he cap provides a secure fastening for-the insulator pin, and also protects the pole from the Y weather; The cap may also be used without the horn arrester.

Itwill be evident a socket for receiving the end oft e pole and provided with an opening for engagement by an insulator pin, and a lateral extension from the socket for su porting an arm having at one end, means or'supporting a protector wire, and at the other a means for attachm'ent to a ground wire; The lateral extension s aces the protector wire and the'arm away mm the line wire. -=Iclaim 1-. The combination with the pole pro-'* vided with a ground wire of a pole top ca comprising a plate having one of itsen s widened, and providedon its lower face with a socket for receiving the end of the pole, said end having on its upper face an opening,

that theca comprises an insulator pin mounted therein, an insu- 35 protector wire, and the loweren .the pole and having a connection with the nected with the opposite end of the plate, said plate being provided with a groove for receiving the arnya U-bolt engaging the arm and having threaded arms traversing in the 5 head, nuts engaging the threaded ends, the

arm extending above and below the head, the

' upper end being-provided with means for supporting a wire, and the lower end being bent at an angle to the upper end. and engaging the pole, and a bolt traversing the arm and ole,

the end of the ground wire being receive between the head of the bolt and the arm.

2. The combination with the pole pro- Vided with a ground wire, of a plate having at one enda socket on its lower face for re ceiving the end of the pole, and an opening on its upper face, an insulator pin supported in the opening, an arm connected with the other end of the plate, said arm extending zo above and below the socket, the upper end being provided with means for supporting a protector wire, and the lower endbeing bent ,at an angle to the arm, and engaging the pole, and a bolt traversing the arni and pole,

the end of the ground wire being received between the head of the bolt and tlie arm.

3. The combination with the pole, provided with a ground wire, of a plate having at one end a socket for receiving the top of the 1pole, and an opening for receiving the insu ator pin, an arm connected with the other end of the late, said arm extending above and below the plate, the upper end being provided with .means for su porting a engaging ground wire 4. The combination with the pole pro vided with a ground wire, of a plate having at one end a socket for receiving the top of the pole, and an opening for receiving an insulator pin, an arm connected with the other protector wire, and the lower end being adapted for connection with a ground wire.

6. A pole top cap, comprising a socket for receiving the end of the pole, said socket having an opening for en agement by an insulator pin, and a latera extension, a vertical arm supported by the extension, the upper end of said 'arm being provided with means for supporting a protector wire, and the lower end being adapted for connection with a ground wire.

7.. vA pole top cap, com rising a socket for receiving the end of the po e, .said socket having a means for engagementby an insulator pin, a lateral extension and means supported by the extension for supportin wire, said means being adapted for connection with a ground wire.

JAMES WILLIAM FRASER.

Witnesses: A. V. HARRILL,

LEO CORNER}.-

0 a protector 

